The goal of this documentation is to comprehensively explain the Node.js API, both from a reference as well as a conceptual point of view. Each section describes a built-in module or high-level concept.Where appropriate, property types, method arguments, and the arguments provided to event han...
child_process.execSync(): a synchronous version of child_process.exec() that will block the Node.js event loop. child_process.execFileSync(): a synchronous version of child_process.execFile() that will block the Node.js event loop.
Doing so allows batching of all writable.write() calls that occur within a given Node.js event loop phase. stream.cork(); stream.write('some '); stream.write('data '); process.nextTick(() => stream.uncork()); If the writable.cork() method is called multiple times on a stream, ...
DeAsync turns async function into sync, implemented with a blocking mechanism by calling Node.js event loop at JavaScript layer. The core of deasync is written in C++. Motivation Suppose you maintain a library that exposes a functiongetData. Your users call it to get actual data: ...
1 Node.js的模块和包 1.1模块 Node.js本身提供许多模块,每个模块实现一种功能,如文件操作模块fs,构建HTTP服务的http模块等,每个模块都是一个javascript文件,可以自己编写模块...每一个Node.js都是一个Node.js模块,包括JavaScript文件(.js)、JSON文本文件(...
The objects listed here are specific to Node.js. There are built-in objects that are part of the JavaScript language itself, which are also globally accessible. C AbortController 历史 版本更改 v15.4.0 No longer experimental. v15.0.0, v14.17.0 Added in: v15.0.0, v14.17.0 ...
Node.js v12.3.1 Documentationnodejs.org/api/events.html 大多数的Node.js核心API都是建立在一个惯用的异步事件驱动模型之上。一种可以发射事件的对象(emitters),导致一个函数对象(listeners)被执行。 例如:在每次发起一个链接时,net.Server会发射一个事件。每次文件打开时fs.ReadStream发射一个事件。每当数据...
can find more details inmy Stackoverflow Question. I couldn’t figure out why this would happen, but I think due to some cumulative CPU intensive operations, event loop response slows down and operations (sending messages) stack up in the queue. Being stuck, I decided to try outSock.js. ...
Node.js REPL 交互式解释器打开终端，键入node进入命令行交互模式，输入代码语句后立即执行并显示结果，例如：D:\Work\Code\NodeJs>nodeWelcome to Node.js v16.16.0.Type ".help" for more information.> console.log("Hello World");Hello WorldNode.js REPL(Read Eval Print Loop:交互式解释器) 表示一个...
Use uv_metrics_idle_time() to return a high resolution millisecond timer of the amount of time the event loop has been idle since it was initialized. Include performance.eventLoopUtilization() API ...